CN212563150U

CN212563150U - Engineering is with mud salvage equipment

Info

Publication number: CN212563150U
Application number: CN202021325738.2U
Authority: CN
Inventors: 于明旭; 刘宣仪; 慈天义; 王锴; 赵富强; 吴斌杰; 辛丽萍
Original assignee: Jiangsu Jianzhu Institute
Current assignee: Jiangsu Jianzhu Institute
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-02-19
Anticipated expiration: 2030-07-08

Abstract

The utility model relates to the technical field of bored pile construction, in particular to a mud salvaging device for engineering, which comprises a salvaging barrel and a plurality of barb plates which are arranged inside the salvaging barrel and are distributed in a horizontal ring shape by taking the axis of the salvaging barrel as the axis; the bottom of the barb plate is rotatably matched with a supporting shaft, a barrel groove for accommodating the barb plate is formed in the inner side wall of the fishing barrel, two ends of the supporting shaft extend into the barrel groove and are fixedly connected with the fishing barrel, a first pull ring is fixedly arranged on the side wall, close to the fishing barrel, of the barb plate, one end of a rigid rope is tied and hung on the first pull ring, a second pull ring is tied and hung at the other end of the rigid rope, and the second pull ring extends into the barrel groove and is fixedly connected with the fishing barrel. The utility model has compact structure, can stably and reliably salvage the drill bit from the complex underground environment by grabbing and lifting the drill bit through the barb plates distributed in the annular shape, and protect the barb plates through the protective cylinder; the fishing barrel can be recycled, the operation is simple, the manufacturing cost is low, and the fishing device is worth popularizing and using.

Description

Engineering is with mud salvage equipment

Technical Field

The utility model relates to a bored pile construction technical field specifically is a mud fishing equipment for engineering.

Background

At present, mechanical drilling is usually carried out by using a rotary excavator, a drill bit is connected to the front part of a drill rod on the rotary excavator, and the drill bit is used for impacting foundation soil to form a pile hole. However, the accident of dropping the drill bit occasionally occurs during the construction, and if the accident of dropping the drill bit occurs, the drill bit must be timely and quickly fished out. The current salvage depth is basically 20 to 100 meters, and water cannot be pumped in the well, and a mud retaining wall is necessary or the well can collapse. Mud is muddy in the well, and ordinary grapple often can't be salvaged, still needs to rely on the diver to go into the well, carries out work such as wire rope binding, soil sediment clearance, however, stake machine well dado is very unstable, very easily collapses, causes the diver to bury the incident occasionally.

The publication number is: the utility model of CN202706971U discloses a drill bit fisher, which comprises a base plate, a connector, two oil cylinders and two hooks; the two hooks are respectively arranged at two ends of the base plate, the middle part of each hook is hinged at the outer end part of the base plate, and the lower end of each hook is provided with a hook tip. The utility model discloses a snatch the drill bit through two pothooks, pothook and drill bit area of contact are limited, snatch poor stability, the reliability is low, lacks the external protection as the pothook of snatching the core moreover, is easily by hard rock layer scratch, destruction in the pit.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a slurry fishing device for engineering, which can adapt to the complex underground drill bit fishing operation, and the grabbing drill bit is stable, reliable and easy to operate; the problem of original salvage equipment snatch drill bit poor stability, reliability are low is solved.

(II) technical scheme

For the operation is salvaged to the borehole drill bit that realizes above-mentioned can the adaptation complicacy, snatchs the purpose that the drill bit is reliable and stable and easily operation, the utility model provides a following technical scheme: the engineering mud salvaging equipment comprises a salvaging barrel, a plurality of barb plates which are arranged in the salvaging barrel and are distributed in a horizontal annular mode by using the axis of the salvaging barrel, a casing pipe which is fixedly sleeved outside the salvaging barrel, a support plate fixedly arranged at the top of the salvaging barrel and a drill rod fixedly arranged at the top of the support plate;

the bottom of the barb plate is rotatably matched with a supporting shaft, a barrel groove for accommodating the barb plate is formed in the inner side wall of the fishing barrel, two ends of the supporting shaft extend into the barrel groove and are fixedly connected with the fishing barrel, a first pull ring is fixedly arranged on the side wall, close to the fishing barrel, of the barb plate, one end of a rigid rope is tied and hung on the first pull ring, a second pull ring is tied and hung at the other end of the rigid rope, and the second pull ring extends into the barrel groove and is fixedly connected with the fishing barrel.

Optionally, the barb plate is arc-shaped; the barb plates are arranged into forty groups and are divided into an upper group and a lower group; when the barb plate forms an included angle of ninety degrees with the horizontal plane, the barb plate is completely retracted into the cylinder groove; when the barb plate and the horizontal plane form an included angle of sixty degrees, the rigid rope is in a tensioning state.

Optionally, barb board top integrated into one piece has the tie board, and when the sixty degree contained angle was personally submitted with the level to the barb board, tie board upper surface and horizontal plane parallel and level.

Optionally, the sidewall of the overshot is provided with through holes for communicating the barrel grooves, the through holes correspond to the barrel grooves one to one, and the through holes and the rigid ropes in the corresponding barrel grooves are in the same vertical plane.

Optionally, a limiting block is arranged below the side wall, far away from the overshot, of the barb plate, and the limiting block is located at the bottom of the barrel groove and integrally formed with the overshot.

Optionally, the top and the bottom of the protecting bobbin are integrally formed with an annular frame, and the annular frame is fixedly connected with the overshot through a bolt; the bearing plate is provided with a circular hole which vertically penetrates through the bearing plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a mud salvage equipment for engineering possesses following beneficial effect:

1. the utility model has compact structure, the annular barb plates can grab and lift the drill bit together, the drill bit can be stably and reliably fished out from the complex underground environment, the fishing barrel can be recycled, the operation is simple, the cost is low, and the fishing device is worth popularizing and using;

2. the middle protective sleeve pipe of the utility model protects the overshot on one hand and prevents the overshot from being scratched by a rock layer of a well wall; on the other hand, the fishing barrel is righted, so that the fishing barrel is righted to a drill bit at the well bottom in the descending process;

3. the utility model discloses well tie and take the board and increased the contact surface of barb board and drill bit, improve the barb board and upwards "snatch" the stability of drill bit, the stopper retrains the inclination of barb board, and the barb board that hinders to lose after the rigidity rope constraint continues to rotate, guarantees that the barb board continuously supports the drill bit, avoids the drill bit to drop.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is an expanded cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 2;

fig. 4 is the schematic diagram of the structure of the fishing cylinder and the barb plate of the utility model.

In the figure: the fishing rod comprises a fishing barrel 1, a protective barrel 2, a support plate 3, a drill rod 4, a barb plate 5, a flat lapping plate 6, a supporting shaft 7, a barrel groove 8, a through hole 9, a first pull ring 10, a rigid rope 11, a second pull ring 12, a limiting block 13, an annular frame 14 and a round hole 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): please refer to fig. 1 and 2, the utility model provides a mud fishing equipment for engineering, including overshot 1, locate overshot 1 inside and be horizontal annular distribution with overshot 1 axle center barb board 5, fixed cover locate overshot 1 outside protect the bobbin 2, weld in the bearing plate 3 at overshot 1 top to and pass through screw thread fixed connection's drilling rod 4 with bearing plate 3.

Wherein, the internal diameter of overshot 1 is greater than the external diameter of drill bit, protects a section of thick bamboo pipe 2 top and bottom integrated into one piece and has annular frame 14, and annular frame 14 passes through bolt fixed connection overshot 1, and protects the external diameter of a section of thick bamboo pipe 2 and be less than five millimeters of well head internal diameter. The protective tube 2 protects the overshot 1 on one hand and prevents the overshot 1 from being scratched by a rock layer of a well wall; on the other hand, the fishing rod 1 has a function of centralizing, so that the fishing rod 1 is aligned with a drill bit at the bottom of the well in the descending process. The supporting plate 3 is provided with a vertically-penetrating circular hole 15, and when the overshot 1 descends in a well, mud in the overshot 1 can flow out through the circular hole 15, so that the resistance of the overshot 1 in the descending process is reduced.

Referring to fig. 2 and 3, the bottom of the barb plate 5 is rotatably fitted with a supporting shaft 7, a barrel groove 8 for accommodating the barb plate 5 is formed on the inner side wall of the overshot 1, and both ends of the supporting shaft 7 extend into the barrel groove 8 and are welded to the overshot 1. The side wall of the barb plate 5, which is close to the overshot 1, is welded with a first pull ring 10, one end of a rigid rope 11 is tied and hung on the first pull ring 10, the other end of the rigid rope 11 is tied and hung with a second pull ring 12, and the second pull ring 12 extends into the barrel groove 8 and is welded with the overshot 1.

Referring to fig. 3 and 4, forty barb plates 5 are provided and divided into an upper group and a lower group; when the barb plate 5 forms an included angle of ninety degrees with the horizontal plane, the barb plate 5 is completely retracted into the cylinder groove 8; when the barb plate 5 forms a sixty degree angle with the horizontal plane, the rigid rope 11 is in a tensioned state. Barb board 5 is arc plate-shaped, and barb board 5 top integrated into one piece has flat board 6 of taking, and when barb board 5 personally submitted sixty degrees contained angles with the horizontal plane, flat board 6 upper surface and horizontal plane parallel and level are taken. The flat lapping plate 6 increases the contact surface of the barb plate 5 and the drill bit, and improves the stability of the barb plate 5 for 'grabbing' the drill bit upwards.

The first pull ring 10 and the second pull ring 12 are located in the same vertical plane, please refer to fig. 3 and 4, a through hole 9 for communicating the barrel groove 8 is formed in the side wall of the overshot 1, and when the protective barrel 2 is fixedly sleeved on the overshot 1, the protective barrel 2 completely seals the through hole 9. The through holes 9 correspond to the cylinder grooves 8 one by one, and the through holes 9 and the rigid ropes 11 in the corresponding cylinder grooves 8 are set to be in the same vertical plane.

Referring to fig. 3 and 4, a limit block 13 is arranged below the side wall of the barb plate 5 away from the overshot 1, and the limit block 13 is located at the bottom of the barrel groove 8 and is integrally formed with the overshot 1. After drill bit gravity is too big and lead to the fracture of rigidity rope 11, thereby barb board 5 loses restraint rotation downwards, after barb board 5 is rotatory and with stopper 13 butt, stopper 13 retrains barb board 5's inclination, hinders barb board 5 and continues to rotate, guarantees barb board 5 and to the support that lasts of drill bit, avoids the drill bit to drop.

The principle of drill bit salvage: utilize the machine of digging soon to promote drilling rod 4 as the driving force for overshot 1 steadily descends in the well, and when barb board 5 reachd the drill bit position, the drill bit surface can be through barb board 5 inclined planes, and after rising overshot 1, barb board 5 and flat access board 6 can block into the outside depressed part of drill bit, realize "lifting" drill bit, and final drill bit can rise along with overshot 1, realizes salvaging.

Recovery process of the drill bit and overshot 1:

after the drill bit rises to the ground along with the fishing equipment, firstly, the drill bit is placed on a construction platform, so that the fishing barrel 1 is suspended; then the protective sleeve pipe 2 is taken away from the overshot 1, so that the through hole 9 is exposed; then an iron hook is stretched into the through hole 9 to pull the rigid rope 11, and the fishing barrel 1 is suspended, so that the barb plate 5 does not generate upward supporting force on the drill bit any more, the barb plate 5 can be accommodated into the barrel groove 8, and the constraint of the barb plate 5 on the drill bit is removed; and finally, hoisting the drill rod 4, taking the overshot 1 away, and exposing the drill bit to realize the recycling of the overshot 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an equipment is salvaged to mud for engineering which characterized in that: the fishing device comprises a fishing barrel (1), a plurality of barb plates (5) which are arranged in the fishing barrel (1) and are distributed in a horizontal annular mode by using the axis of the fishing barrel (1), a protecting barrel pipe (2) fixedly sleeved outside the fishing barrel (1), a supporting plate (3) fixedly arranged at the top of the fishing barrel (1), and a drill rod (4) fixedly arranged at the top of the supporting plate (3);

the rotary support shaft (7) is matched with the bottom of the barb plate (5) in a rotating mode, a barrel groove (8) for containing the barb plate (5) is formed in the inner side wall of the fishing barrel (1), the two ends of the support shaft (7) stretch into the barrel groove (8) and are fixedly connected with the fishing barrel (1), a first pull ring (10) is fixedly arranged on the side wall, close to the fishing barrel (1), of the barb plate (5), one end of a rigid rope (11) is tied and hung on the first pull ring (10), a second pull ring (12) is tied and hung at the other end of the rigid rope (11), and the second pull ring (12) stretches into the barrel groove (8) and is fixedly connected with the fishing barrel (1).

2. The mud fishing equipment for engineering as claimed in claim 1, wherein: the barb plate (5) is arc-shaped; the barb plates (5) are arranged into forty groups which are divided into an upper group and a lower group; when the barb plate (5) forms a ninety-degree included angle with the horizontal plane, the barb plate (5) is completely retracted into the cylinder groove (8); when the barb plate (5) and the horizontal plane form an included angle of sixty degrees, the rigid rope (11) is in a tensioning state.

3. The mud fishing equipment for engineering as claimed in claim 2, wherein: the barb plate is characterized in that a flat lapping plate (6) is integrally formed at the top of the barb plate (5), and when the barb plate (5) and the horizontal plane form a sixty-degree included angle, the upper surface of the flat lapping plate (6) is flush with the horizontal plane.

4. The mud fishing equipment for engineering as claimed in claim 1, wherein: the side wall of the overshot (1) is provided with through holes (9) used for communicating the barrel grooves (8), the through holes (9) correspond to the barrel grooves (8) one by one, and the through holes (9) and the rigid ropes (11) in the corresponding barrel grooves (8) are located in the same vertical plane.

5. The mud fishing equipment for engineering as claimed in claim 1, wherein: a limiting block (13) is arranged below the side wall, far away from the fishing barrel (1), of the barb plate (5), and the limiting block (13) is located at the bottom of the barrel groove (8) and integrally formed with the fishing barrel (1).

6. The mud fishing equipment for engineering as claimed in claim 1, wherein: the top and the bottom of the bobbin protecting tube (2) are integrally formed with an annular frame (14), and the annular frame (14) is fixedly connected with the fishing barrel (1) through bolts; the supporting plate (3) is provided with a circular hole (15) which vertically penetrates through the supporting plate.